House extensions in Lancaster

Lancaster received 349 householder applications in the last 12 months - about 7 a week. Rear extensions and side extensions are the most common. Of the 246 decided so far, 210 were approved. If you're planning your own, the applications below show what people nearby applied for and how the council decided.

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Showing 50 of 117 applications
2 days ago Awaiting decision 26/00904/FUL

1 Lancaster Road Cockerham Lancaster Lancashire LA2 0EB

Erection of a two storey front/side extension, erection of a front porch, installation of windows and doors

Full Application Lancaster
8 Sept 2026 Pending 26/00900/FUL

9 Burrow Heights Lane Lancaster Lancashire LA2 0PG

Erection of a single storey rear extension, installation of air conditioning and associated landscaping

Full Application Lancaster
8 Sept 2026 Pending 26/00898/FUL

15 Second Terrace Sunderland Point Morecambe Lancashire LA3 3HT

Installation of an internal basement hatch and blocking up of the existing basement access

Full Application Lancaster
7 Sept 2026 Pending 26/00845/FUL

5 Golgotha Village Wyresdale Road Lancaster Lancashire LA1 3DZ

Installation of a replacement roof to the rear outbuilding

Full Application Lancaster
7 Sept 2026 Pending 26/00895/FUL

Greenlot Farm Postern Gate Road Quernmore Lancaster Lancashire LA2 9EL

Erection of extension to existing building and enlargement of existing underground slurry tank

Full Application Lancaster
4 Sept 2026 Awaiting decision 26/00885/FUL

Church Rigg St Michaels Lane Bolton Le Sands Carnforth Lancashire LA5 8DP

Change of use and conversion of existing commercial and residential property to a single residential dwelling, including the erection of a link extens...

Full Application Lancaster
4 Sept 2026 Awaiting decision 26/00812/FUL

33 Hale Carr Grove Heysham Morecambe Lancashire LA3 2AD

Erection of a summer house

Full Application Lancaster
4 Sept 2026 Pending 26/00867/PAH

17 Clare Road Lancaster Lancashire LA1 2LX

Erection of a 5 metre deep, single storey rear extension with a maximum roof height of 3.50 metres and a maximum eaves height of 3 metres

Prior Approval - Householder rear ext Lancaster
3 Sept 2026 Pending 26/00878/FUL

42 Croftlands Warton Carnforth Lancashire LA5 9QA

Demolition of outbuilding and erection of a single storey rear extension

Full Application Lancaster
2 Sept 2026 Pending 26/00876/FUL

59 Twemlow Parade Heysham Morecambe Lancashire LA3 2AL

Erection of a side/rear wrap around extension

Full Application Lancaster
1 Sept 2026 Pending 26/00873/PLDC

36 Westbourne Road Lancaster Lancashire LA1 5DX

Proposed Lawful Development Certificate for the erection of a single storey rear extension

Proposed Lawful Development Certificate Lancaster
1 Sept 2026 Pending 26/00868/FUL

Hackinghurst Cottages Wyresdale Road Quernmore Lancaster Lancashire LA2 9EF

Erection of a single storey side extension to ancillary building

Full Application Lancaster
1 Sept 2026 Awaiting decision 26/00869/PAH

4 Savoy Avenue Morecambe Lancashire LA3 3LP

Erection of a 3.50 metre deep, single storey rear extension with a maximum roof height of 3.90 metres and a maximum eaves height of 2.61 metres

Prior Approval - Householder rear ext Lancaster
1 Sept 2026 Pending 26/00563/FUL

100 Westgate Morecambe Lancashire LA3 3DG

Creation of dropped kerb and driveway access for EV charger and erection of wall and gate

Full Application Lancaster
27 Aug 2026 Pending 26/00816/FUL

15 Coleman Drive Lancaster Lancashire LA1 3FQ

Construction of a loft conversion

Full Application Lancaster
27 Aug 2026 Pending 26/00284/FUL

3 - 12 Gage Street Lancaster Lancashire LA1 1UH

Change of use and conversion of the first, second and third floors of existing commercial building into twelve student studios and four 4-bed cluster ...

Full Application Lancaster
25 Aug 2026 Awaiting decision 26/00860/FUL

Jobcentre Plus Mitre House Church Street Lancaster Lancashire LA1 1JW

Erection of security fencing to the north boundary, installation of security gate/fencing to vehicular entrance and installation of mesh panels to ope...

Full Application Lancaster
25 Aug 2026 Awaiting decision 26/00833/FUL

41 Belle Vue Terrace Lancaster Lancashire LA1 4TY

Installation of a replacement roof, solar panels and velux windows to the roof, installation of windows, sliding door, EV charger, air source heat pum...

Full Application Lancaster
24 Aug 2026 Awaiting decision 26/00856/FUL

Edenmount Well Lane Yealand Redmayne Carnforth Lancashire LA5 9SX

Erection of a two storey side extension

Full Application Lancaster
24 Aug 2026 Awaiting decision 26/00852/FUL

Kirk House Farm Main Road Over Kellet Carnforth Lancashire LA6 1DX

Erection of a side extension to existing storage building

Full Application Lancaster
24 Aug 2026 Awaiting decision 26/00851/FUL

Halton Community Association The Centre Low Road Halton Lancaster Lancashire LA2 6NB

Erection of a single storey front extension and alterations to access ramp

Full Application Lancaster
24 Aug 2026 Awaiting decision 26/00840/FUL

48 Foxfield Avenue Morecambe Lancashire LA4 4SS

Erection of a rear wrap around extension

Full Application Lancaster
21 Aug 2026 Awaiting decision 26/00848/VCN

5 Derby Street Morecambe Lancashire LA4 4BD

Demolition of existing single storey extension and erection of a three storey rear extension and reinstatement of two tracery windows to the east elev...

Variation of a Condition Application Lancaster
21 Aug 2026 Awaiting decision 26/00568/FUL

Wenning House Wennington Road Wennington Lancaster Lancashire LA2 8NN

Retrospective application for the construction of pergola

Full Application Lancaster
20 Aug 2026 Awaiting decision 26/00366/FUL

195 Westminster Road Heysham Morecambe Lancashire LA3 1SL

Change of use of dwelling to three flats and installation of a rooflight

Full Application Lancaster
19 Aug 2026 Awaiting decision 26/00615/FUL

2 Browns Houses Lindeth Road Silverdale Carnforth Lancashire LA5 0UA

Erection of single storey side/rear extension, insertion of larger window and door into existing lean-to, replacement of windows, rooflights, doors an...

Full Application Lancaster
17 Aug 2026 Awaiting decision 26/00831/FUL

42 Lister Grove Heysham Morecambe Lancashire LA3 2DG

Erection of a first floor side extension and installation of rooflights

Full Application Lancaster
17 Aug 2026 Awaiting decision 26/00835/PAH

61 Brookhouse Road Caton Lancaster Lancashire LA2 9RG

Erection of a 3.83 metre deep, single storey rear extension with a maximum roof height of 3.92 metres and a maximum eaves height of 2.89 metres

Prior Approval - Householder rear ext Lancaster
17 Aug 2026 Awaiting decision 26/00559/FUL

Wenning House Wennington Road Wennington Lancaster Lancashire LA2 8NN

Construction of pergola

Full Application Lancaster
14 Aug 2026 Awaiting decision 26/00760/FUL

Hall Garth Capernwray Road Over Kellet Carnforth Lancashire LA6 1BX

Demolition of part of existing side extension, erection single storey side extension including canopy area, replacement windows, doors and garage door...

Full Application Lancaster
14 Aug 2026 Awaiting decision 26/00677/FUL

Wyreside Lodge Chipping Lane Dolphinholme Lancaster Lancashire LA2 9DQ

Widening and resurfacing of access including demolition of wall and replacement gates

Full Application Lancaster
14 Aug 2026 Approved 26/00828/PLDC

53 St Wilfrids Park Halton Lancaster Lancashire LA2 6PN

Proposed lawful development certificate for the demolition of existing attached outbuildings and erection of a single storey rear extension

Proposed Lawful Development Certificate Lancaster
11 Aug 2026 Approved 26/00821/PLDC

12 Derby Road Lancaster Lancashire LA1 2AD

Proposed lawful development certificate for the erection of a single storey rear extension

Proposed Lawful Development Certificate Lancaster
11 Aug 2026 Awaiting decision 26/00820/FUL

385 Heysham Road Heysham Morecambe Lancashire LA3 2JH

Change of use of dwellinghouse to veterinary clinic, demolition of garage, erection of a single storey rear extension to the rear, associated parking

Full Application Lancaster
7 Aug 2026 Awaiting decision 26/00558/FUL

Former Bowling Green Pub 157 Scotforth Road Lancaster Lancashire LA1 4SG

Conversion of public house into eleven self-contained studio student apartments and three 2-bed self-contained student apartments, demolition of part ...

Full Application Lancaster
6 Aug 2026 Awaiting decision 26/00813/PLDC

13 Pennine View Morecambe Lancashire LA4 4QB

Proposed lawful development certificate for hip to gable roof extension, construction of rear dormer extension, erection of single storey side extensi...

Proposed Lawful Development Certificate Lancaster
6 Aug 2026 Pending 26/00572/PLDC

7 Chestnut Drive Morecambe Lancashire LA4 6HN

Proposed lawful development certificate for the construction of a dormer extension to the rear elevation

Lancaster
5 Aug 2026 Awaiting decision 26/00805/FUL

1 Fern Bank Lancaster Road Carnforth Lancashire LA5 9DS

Change of use from existing dwellinghouse to a children's home, erection of a single storey side extension, rebuilding of outrigger and erection of bi...

Full Application Lancaster
5 Aug 2026 Approved 26/00796/FUL

Higher Kit Brow Kit Brow Lane Ellel Lancaster Lancashire LA2 0QH

Erection of a single storey side extension and construction of dormer extension to the east elevation

Full Application Lancaster
4 Aug 2026 Awaiting decision 26/00792/FUL

Wild Duck Cottage St Nicholas Lane Bolton Le Sands Carnforth Lancashire LA5 8ER

Erection of a 2 storey rear extension

Full Application Lancaster
4 Aug 2026 Awaiting decision 26/00783/FUL

Church Of St Thomas More St Thomas More Walk Lancaster Lancashire LA1 5PT

Erection of a replacement two storey extension and erection of a single storey detached building, installation of a fence,a multi-use games area, and ...

Full Application Lancaster
4 Aug 2026 Awaiting decision 26/00801/PLDC

2 Mill Hill Grove Middleton Morecambe Lancashire LA3 3JZ

Proposed lawful development certificate for the erection of a single storey rear extension

Proposed Lawful Development Certificate Lancaster
4 Aug 2026 Decided 26/00800/PAH

33 Broadlands Drive Bolton Le Sands Carnforth Lancashire LA5 8BH

Erection of a 6.00 metre deep, single storey rear extension with a maximum roof height of 3.58 metres and a maximum eaves height of 2.94 metres

Prior Approval - Householder rear ext Lancaster
3 Aug 2026 Decided 26/00799/PAH

Pattys Farm Hillam Lane Cockerham Lancaster Lancashire LA2 0DY

Erection of a 5.95 metre deep, single storey rear extension with a maximum roof height of 3.00 metres and a maximum eaves height of 2.80 metres

Prior Approval - Householder rear ext Lancaster
3 Aug 2026 Awaiting decision 26/00756/FUL

Bumblehole Lodge Lane Wennington Lancaster Lancashire LA2 8NW

Erection of a garden gazebo

Full Application Lancaster
3 Aug 2026 Decided 26/00763/PAH

9 Victoria Avenue Lancaster Lancashire LA1 4SY

Erection of a 5.3 metre deep, single storey rear extension with a maximum roof height of 3.8 metres and a maximum eaves height of 2.5 metres

Prior Approval - Householder rear ext Lancaster
31 Jul 2026 Approved 26/00793/PLDC

210 Westminster Road Heysham Morecambe Lancashire LA3 1UT

Proposed lawful development certificate for the change of use of dwellinghouse to 4-bed house in multiple occupation including renovation to property ...

Proposed Lawful Development Certificate Lancaster
31 Jul 2026 Awaiting decision 26/00659/FUL

9 Broadacre Caton Lancaster Lancashire LA2 9NF

Demolition of existing garage, erection of a single storey side extension, erection of a replacement garage, greenhouse and boundary fence

Full Application Lancaster
30 Jul 2026 Refused 26/00625/FUL

35 Harcourt Road Lancaster Lancashire LA1 2NZ

Erection of a single storey side extension

Full Application Lancaster
30 Jul 2026 Awaiting decision 26/00671/FUL

Wagtail Cottage Aughton Road Aughton Lancaster Lancashire LA2 8LU

Erection of a conservatory to the rear

Full Application Lancaster
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Frequently asked questions

When do you need planning permission for a house extension?
Single-storey rear extensions up to 4m (detached) or 3m (semi-detached / terraced) are usually permitted development. Two-storey extensions, anything in a conservation area, or larger projects almost always need a planning application.
What's the difference between planning permission and permitted development?
Permitted development rights let you build certain things without applying for planning permission, subject to specified limits. Anything outside those limits, whether taller, larger or in a protected area, needs full planning permission.
How long does a householder application take?
The statutory target is 8 weeks from validation. Most simple householder extensions are decided within that window; complex or contested cases, especially those drawing a lot of comments, can take longer.
Can I get email alerts for new extensions applications in Lancaster?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Lancaster. You can also narrow the alert to a postcode, street, or drawn area.

We check Lancaster's planning portal daily. New extensions applications appear here within a day of being published.